gustable vs indigestible

gustable

noun
  • Something edible. 

adj
  • Pleasant to the taste; toothsome; savory. 

  • Having a taste; capable of being tasted. 

indigestible

noun
  • Anything that is difficult to digest. 

adj
  • Difficult or impossible to digest. 

  • Difficult to accept; unpalatable. 

How often have the words gustable and indigestible occurred in a corpus of books? (source: Google Ngram Viewer )